Before those superstars arrive in Central Florida, I'm heading over to the American Combat Club on Colonial Drive to get a lesson about MMA from a few local fighters.

Tune in at noon to see if I survive.

About Orlando Sentinel Live

The Orlando Sentinel video team is going live. Video blogger Jon Busdeker is doing a series of live events at noon each day starting April 7. Where he’s reporting from will be a daily surprise, but anything, anywhere and anyone is possible. And, since it’s live, anything could happen.

For today's live event, we'll be broadcasting from the Orlando Science Center and getting a preview of the new traveling exhibit, "Zoom Into Nano," a look at how scientists view and make things that are too small to see.

Bitterly admitting defeat, House Republicans on Tuesday abandoned their attempts to use the Homeland Security Department's spending bill to force concessions from President Barack Obama on immigration, and sent him legislation to fund the agency through the end of the budget year with no...